1. Safety Symbols

2. What is this?

3. Disposal Special disposal procedures need to be followed
Ex. Certain chemicals, living organisms
Do not dispose these into the trash can
Dispose of waste as directed by your teacher

4. What is this?

5. Biological Hazard Organisms that might be harmful to humans
Ex. Bacteria, fungi, blood,etc
Avoid skin contact by wearing mask and gloves
Notify your teacher if you suspect contact with material.
Wash hands thoroughly

6. What is this?

7. Extreme Temperature Objects that can burn skin: Hot or Cold
Ex. Boiling liquids, hot plates, dry ice, etc
Use proper protection when handling
Go to your teacher for first aid

8. What is this?

9. Sharp Object Use of tools or glass that can easily puncture skin
Razor blades, pins, BROKEN GLASS!, etc
Practice common sense behavior and ask teacher to help clean
Go to your teacher for first aid

10. What is this?

11. Fume Possible danger to respiratory tract
Ammonia, acetone, heated sulfur, etc
Check for good ventilation
Never smell fumes and always wear a mask
Leave foul area and notify teacher immediately

12. What is this?

13. Electrical Possible danger from electric shock or burn
Liquid spills, short circuits, exposed wires, etc
Double-check set up with teacher.
Check condition of equipment
DO NOT TRY TO FIX!
Notify teacher immediately

14. What is this?

15. Irritant
Substance that can irritate skin or mucus membranes of respiratory tract
Fiber glass, potassium permanganate, etc
Wear dust mask and gloves
Practice extra care
Go to teacher for first aid

16. What is this?

17. Chemical
Chemicals that can react with and destroy tissue and other materials
Bleaches, acids, and bases
Wear goggles, gloves, and an apron
Immediately flush the affected area with water and notify your teacher

18. What is this?

19. Toxic Substance may be poisonous if touched, inhaled, or swallowed
Mercury, iodine, metal compounds, etc
Follow your teacher’s instructions
Always wash hands thoroughly after use.
Go to teacher for first aid

20. What is this?

21. No Open Flame
Open flame may ignite flammable chemicals, loose clothing, or hair
Ex. Alcohol, hair, clothing, etc
Avoid wearing loose clothing
Be aware of safety equipment locations
Tie back loose hair
Notify teacher immediately

22. Goggles: Eye Safety
Proper eye protection should be worn at all times by anyone performing or observing science activities

23. Apron: Clothing Protection
This symbol appears when substances could stain or burn clothing

24. Animal Safety
This symbol appears when safety of animals and students must be ensured

25. Radioactivity
This symbol appears when radioactive materials are used

26. MSDS Material Safety Data Sheet
A Material Safety Data Sheet (MSDS) is a document that gives detailed information about the nature of a chemical, such as
physical and chemical properties
health, safety, fire, and environmental hazards of a chemical product.
They are designed for:
workers who may be exposed to hazardous materials
emergency personnel (for example, firefighters),who may have to clean up a spill or release.

28. Hazard Diamond: On MSDS
The four divisions are typically color-coded,
Blue: health hazard
Red: flammability
Yellow: (chemical) reactivity
White: special codes for unique hazards.
Each is rated on a scale:
from 0 (no hazard; normal substance) to 4 (severe risk).